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maintenance_ph [18/02/2019 08:10] pieter |
maintenance_ph [19/06/2019 14:02] pieter [Cleaning] |
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* **stuborn deposits and bacterial growth**: soak the electrode in a 1:10 dilution of household laundry bleach for 15 minutes. | * **stuborn deposits and bacterial growth**: soak the electrode in a 1:10 dilution of household laundry bleach for 15 minutes. | ||
* **proteinaceous materials (such as blood)**: the electrode should stand in a Pepsine cleaning solution | * **proteinaceous materials (such as blood)**: the electrode should stand in a Pepsine cleaning solution | ||
- | * **protein deposits**: soak the electrode in 1% pepsin in 0.1 M HCl (Consort article **B231**) for 15 minutes | + | * **protein deposits**: soak the electrode in 1% pepsin in 0.1 M HCl (Consort article **B231**) for 15 minutes. This can be used after measurements in products such as cheese, meat, blood, ... |
* **inorganic deposits**: soak the electrode in 0.1 M tetra sodium EDTA for 15 minutes. | * **inorganic deposits**: soak the electrode in 0.1 M tetra sodium EDTA for 15 minutes. | ||
* **oil and grease**: rinse the electrode with mild detergent (B530) or methanol. | * **oil and grease**: rinse the electrode with mild detergent (B530) or methanol. |